System and Method for Fuel Generation from Algae

Abstract

A novel algae bioreactor and biofuel production system is presented that uses an efficient distribution and delivery mechanism for light, water, nutrient, and carbon dioxide. An efficient light delivery system uses multiple LEDs at red and blue wavelengths to enhance / optimize the algal growth. In addition, multiple light rods are immerses in large and deep bioreactor to achieve even growth of algae within the tank. A novel water / nutrient / CO2 delivery and distribution system enhances CO2 retention in the culture, produces even distribution of nutrient and results in even and rapid algae growth throughout the bioreactor tank. A nutrient delivery system is disclosed based on processing of aquatic waste for superior nutrient for algal growth. The modular design of the system allows for scaling and maintenance, for continuous operation of the plant.

Description

CROSS REFERENCE TO THE RELATED APPLICATIONS[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 509,119, filed on 19-Jul.-2011, by the same inventor and the same assignee. The U.S. Provisional Application No. 61 / 509,119 is hereby incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]Alternative sources of energy (especially green energy) have been the subject of increased attention and focus of both commercial and governmental entities around the world. In particular, there has been a great interest in using algae to produce bio-fuel as a substitute or a complement to fossil fuel. For example see Philip T. Pienkos, “The Potential for Biofuels from Algae”, presented at the inagaural Algae Biomass Summit held Nov. 14-16, 2007 in San Francisco, Calif., http: / / www.nrel.gov / docs / fy08osti / 42414.pdf.[0003]Micro-algae are one of the fastest growing photosynthesizing organisms, with some strains containing large percentage of fat which ...

AI Technical Summary

Benefits of technology

This patent describes a modular reactor for growing algae using LED lighting. The system is designed to maximize algae production by matching the light wavelengths with the needs of the algae. A delivery system is also provided for delivering nutrients and CO2 to the algae. The system is modular, allowing for scaling and isolation of individual modules in case of infection or diseases. The captured CO2 can also be stored and reused. Overall, the patent provides a technical solution for efficient and cost-effective algae growth.

Problems solved by technology

However, the algae growth in open ponds suffers from the difficulty of requiring large land area to cultivate algae in shallow ponds, as the algae cells require both light and carbon dioxide (in addition to nutrient) entering from the top surface in order to grow and multiply.

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